Soul Swap: Transmigrating Into a Prince and Slaying My Way Across the Frontier

"One-on-one romance, happy ending, complementary teammates, both pursuing each other, a martial arts powerhouse of a young lady vs. a sinister, scheming prince, joyful comedy"

Mu Lihe, the General of Pingxi, notices that his younger sister, Mu Wanhe, has become much more well-behaved since she fell into the water.

Whenever the General of Pingxi went on campaign, Mu Wanhe used to join the army on her own initiative. The night before the two armies clashed, she would appear in the blink of an eye and help her brother launch a surprise attack on the enemy.

Now, whenever he goes to war, Mu Wanhe's attitude is simple: if it doesn't concern her, she stays out of it; if it does, she just tries to smooth things over.

At the martial arts grounds, a warrior invites his young lady to spar. Ji Yanjing hurriedly makes an excuse, looking nervous. “I-I got my period. Let's spar another time.”

Mu Lihe leads a horse over. “This fine steed is wildest of them all and runs the fastest. Wouldn't you rather tame it yourself?”

Ji Yanjing: “What? She's a... I mean, I'm a young lady from a wealthy family. Why should I have to tame a horse?”

Mu Lihe looks puzzled. “Don't you love taming wild horses? You refuse to ride any horse someone else has trained!”

Ji Yanjing: “...Tame... wild horses?!”

In the palace, the useless Fifth Prince seems to have had his energy channels unblocked overnight. The weakling instantly turns into a god of war, winning more than a dozen bouts in a row!

The old emperor weeps with joy. “Heaven blesses our dynasty! My son was hiding his true strength all along!”

Mu Wanhe: “With a prince's secret identity, I'm terrifyingly strong. Who can stop me?”

The other princes are knocked down one after another, cursing the former good-for-nothing, now-prodigy in their hearts!

Mu Wanhe continues to dominate every fight on her own. To rein in the Fifth Prince's arrogance, the others decide to petition the emperor together, asking him to betroth the General of Pingxi's fearsome younger sister to the prince!